---
title: Ecosystems and Interdependence
created: 2026-05-25
updated: 2026-05-25
type: lesson_topic
subject: science
tags: ['ecosystems', 'grade-2', 'homeschool', 'ngss', 'science']
weeks: [20]
source: Home_School/2nd_Grade/Science/
---
## Overview
Ecosystems and Interdependence — Science curriculum topic for 2nd grade.
**Weeks covered:** Week_20
## Description
Ecosystems and interdependence — how living and non-living things depend on each other.
## Related Topics
- [[water-habitats]] (previous week)
- [[water-on-earth]] (next week)
- [[science-curriculum-map]] (full Science curriculum overview)